Another Purple Lake Piece

I'm not sure of the time or conditions that this purple lake piece represents.

Lake #33

One of my sisters-in-law sent a bag of scraps. One piece was this purple Thai silk. I could hardly wait to make that Lake quilt. There will be more pieces that use this silk. I plan to let the fabric speak more for itself in those.
Here's the piece under construction ... before the quilting.

Here are both purple pieces. The new one and ...#28, the one that represents a moonlit night.